a{
	cursor:pointer;
}
.tow{
	background-image: url(../img/背景.jpeg);
	background-repeat: no-repeat;
	background-size: 100vw 100vh;
	height: 100vh;
	margin: 0 auto;
	display: flex;
	align-items: center; /* 垂直居中 */
	justify-content: center; /* 水平居中 */
}
.formstyle {
 	width: 500px;
  padding: 30px;
  margin-top: 20px;
  box-shadow: -4px 7px 46px 2px rgba(0, 0, 0, 0.4);
		background: white; 
		border-radius: 15px;
}
.formstyle  h2 {
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 10px 0 10px 0;
  color: #000000;
		text-align: center;
}
.formstyle  .form-group {
  margin-bottom: 5px;
}
.formstyle  .form-group p {
  font-size: 14px;
  color: #9f9f9f;
  font-weight: 300;
}
.formstyle  label {
  font-weight: 250;
  font-size: 18px;
}
.form-group a{
	color: #9f9f9f;
	font-size: 13px;
}
.form-group a:hover{
	color: black;
}
.formstyle  .form-control {
  font-size: 16px;
  font-weight: 250;
  height: 30px;
  border: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  -o-box-shadow: none;
  box-shadow: none;
  -webkit-border-radius: 0px;
  -moz-border-radius: 0px;
  -ms-border-radius: 0px;
  border-radius: 0px;
  -moz-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  -webkit-transition: all 0.3s ease;
  -ms-transition: all 0.3s ease;
  transition: all 0.3s ease;
}
.formstyle  .form-control::-webkit-input-placeholder {
  color: rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
}
.formstyle  .form-control::-moz-placeholder {
  color: rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
}
.formstyle  .form-control:-ms-input-placeholder {
  color: rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
}
.formstyle  .form-control:-moz-placeholder {
  color: rgba(0, 0, 0, 0.3);
  text-transform: uppercase;
}
.formstyle  .form-control:focus, .formstyle .form-control:active {
  border-bottom: 1px solid rgba(0, 0, 0, 0.4);
}
.btn-primary {
  height: 50px;
  padding-right: 20px;
  padding-left: 20px;
  border: none;
  background: #33cccc;
  color: #ffffff;
  -webkit-box-shadow: -2px 10px 20px -1px rgba(51, 204, 204, 0.4);
  -moz-box-shadow: -2px 10px 20px -1px rgba(51, 204, 204, 0.4);
  -o-box-shadow: -2px 10px 20px -1px rgba(51, 204, 204, 0.4);
  box-shadow: -2px 10px 20px -1px rgba(51, 204, 204, 0.4);
}
.btn-primary:hover, .btn-primary:focus, .btn-primary:active {
  color: #ffffff;
  background: #47d1d1 !important;
  outline: none;
}
.placeholder {
  color:lightgrey;
}